6. (1) The Government may, by notification, direct that any persons or class of persons subject to this Act under clause (d) of section 2, shall be so subject as officers, ¹[master warrant officer,] warrant officers or non-commissioned officers, and may authorise any officer to give a like direction or to cancel such direction. (2) All persons subject to this Act other than officers, warrant officers and non-commissioned officers, shall, if they are not persons in respect of whom a notification or direction under sub-section (1) is in force, be deemed to be of a rank ²[lower] to that of a non-commissioned officer.